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【华慧考博】考博英语每日一练（6.11）考博加油！
1. We assume that Western agriculture is the very ______ of what is possible in the productive use of soil for the growth of food.
A. pitch
B. ploy
C. pitfall
D. pinnacle
2. Today dozens of scientific groups in different countries have been ______ the goal of a practical and economic way to use sunlight to split water molecules.
A. reaching
B. winning
C. chasing
D. pursuing
【考博英语句子改错】
During the Colonial days, the Iroquois had an agricultural economy basing mainly on corn with supplementary crops of pumpkins, beans, and tobacco.
